Done By

Vishnuprasad.V.P

Class XI A1

Batch : 2012-13

WAVES

Waves

Wave motion is a form of disturbance which travels through a medium due to the

repeated periodic motion of the particles of the medium about their mean positions, the motion being handed over from one particle

to another.

The waves which can be produced or propagated only in a material medium are called elastic or mechanical waves.

The waves which do not require a medium to propagate are called electromagnetic waves.

TYPES OF WAVE

MOTION

Transverse Wave Mot ion

Long i tud ina l

Wave Mot ion

Transverse Wave Mot ion

When the particles of the medium vibrate about their mean positions in a direction perpendicular to the direction of propagation of disturbance, the wave motion is called the transverse wave motion.

Image of a transverse wave

Longi tudina l Wave Mot ion

When the particles of the medium vibrate about their mean positions in the direction of propagation of disturbance, the wave motion is called the transverse wave motion.

Compression

Rarefaction

A longitudinal wave

R e f e r e n c e s :

Pictures : Internet

Information : i) Modern’s ABC

ii) DK Encyclopaedia

THANK YOU